Contains an entry for each individual visit to every star in the data release.
| Name | Type | Units | Description |
|---|---|---|---|
| VISIT_ID | char[28] | Unique apVisit identifier: apogee.[ns].[sc].apred_vers.plate.mjd.fiber, where [ns] is for APOGEE north/south, and [sc] is for survey/commissioning | |
| TARGET_ID | char[28] | Targeting identifier: combination of the LOCATION_ID and APOGEE_ID | |
| APRED_VERSION | char[2] | ||
| APOGEE_ID | char[18] | TMASS-STYLE object name | |
| FILE | char[34] | File name | |
| FIBERID | int16 | Fiber number | |
| PLATE | int16 | Plate ID | |
| MJD | int32 | MJD of observation | |
| LOCATION_ID | int16 | Field Location ID | |
| RA | float64 | degrees | Right ascension (J2000) |
| DEC | float64 | degrees | Declination (J2000) |
| GLON | float64 | degrees | Galactic longitude |
| GLAT | float64 | degrees | Galactic latitude |
| J | float32 | 2MASS J mag | |
| J_ERR | float32 | uncertainty in 2MASS J mag | |
| H | float32 | 2MASS H mag | |
| H_ERR | float32 | uncertainty in 2MASS H mag | |
| K | float32 | 2MASS Ks mag | |
| K_ERR | float32 | Uncertainty in 2MASS Ks mag | |
| RA_TARG | float64 | Targeting RA | |
| DEC_TARG | float64 | Targeting DEC | |
| APOGEE_TARGET1 | int32 | First APOGEE-1 Targeting Flag, see bitmask definition | |
| APOGEE_TARGET2 | int32 | Second APOGEE-1 Targeting Flag, see bitmask definition | |
| APOGEE_TARGET3 | int32 | Third APOGEE-1 Targeting Flag, has not been not populated | |
| SURVEY | char[14] | Survey-associated with vist: apogee, apo1m, apogee-marvels, apogee2, apogee2-manga, manga-apogee2 | |
| TARGFLAGS | char[97] | Verbose form of targeting flags | |
| SNR | float32 | Median S/N per pixel | |
| STARFLAG | int32 | Star-level Flag, see bitmask definition | |
| STARFLAGS | char[114] | Verbose form of STARFLAG | |
| DATEOBS | char[23] | Date of observation | |
| JD | float64 | Julian Date of observation | |
| BC | float32 | km/s | Barycentric Correction |
| VTYPE | int16 | Radial velocity determination method | |
| VREL | float32 | km/s | Derived radial velocity (RV) |
| VRELERR | float32 | km/s | Error in RV |
| VHELIO | float32 | km/s | Derived barycentric RV |
| VLSR | float32 | km/s | Inferred VLSR |
| VGSR | float32 | Inferred VGSR | |
| CHISQ | float32 | Chi^2 of fit | |
| RV_TEFF | float32 | K | Teff of best-matching synthetic spectrum to combined spectrum |
| RV_FEH | float32 | [Fe/H] of best-matching synthetic spectrum to combined spectrum | |
| RV_LOGG | float32 | log g of best-matching synthetic spectrum to combined spectrum | |
| RV_ALPHA | float32 | [alpha/Fe] of best-matching synthetic spectrum to combined spectrum | |
| RV_CARB | float32 | [C/Fe] of best-matching synthetic spectrum to combined spectrum | |
| SYNTHFILE | char[23] | Filename of library of synthetic spectra | |
| ESTVTYPE | int16 | Method for RV initial estimate | |
| ESTVREL | float32 | km/s | Initial RV estimate from single visit |
| ESTVRELERR | float32 | km/s | Initial RV error from single visit |
| ESTVHELIO | float32 | km/s | Initial barycentric velocity from single visit |
| SYNTHVREL | float32 | km/s | Relative radial velocity from synthetic spectrum template matching |
| SYNTHVRELERR | float32 | km/s | RV error of SYNTHVREL |
| SYNTHVHELIO | float32 | km/s | Helocentric RV from SYNTHVREL |
| OBSVREL | float32 | km/s | Relative radial velocity from observed spectrum template matching |
| OBSVRELERR | float32 | km/s | RV error of OBSVREL |
| OBSVHELIO | float32 | km/s | Helocentric RV from OBSVREL |
| FIELD | char[16] | Field name | |
| APOGEE2_TARGET1 | int32 | First APOGEE-2 Targeting Flag, see bitmask definition | |
| APOGEE2_TARGET2 | int32 | Second APOGEE-2 Targeting Flag, see bitmask definition | |
| APOGEE2_TARGET3 | int32 | Third APOGEE-2 Targeting Flag, see bitmask definition | |
| COMMISS | int16 | Parameter set to 1 for commissioning data, else 0 | |
| EXTRATARG | int32 | Bitmask that identifies main survey targets and other classes, see bitmask definitions. | |
| MIN_H | Bright H limit for target selection of this object | ||
| MAX_H | Faint H limit for target selection of this object | ||
| MIN_JK | Blue J-K limit for target selection of this object | ||
| MAX_JK | Red J-K limit for target selection of this object | ||
| REDUCTION_ID | char[23] | Reduction pipeline identifier | |
| SRC_H | int16 | >Source employed for H magnitude | |
| WASH_M | float32 | Washington M mag | |
| WASH_M_ERR | float32 | M uncertainty | |
| WASH_T2 | float32 | Washington T2 mag | |
| WASH_T2_ERR | float32 | T2 uncertainty | |
| DDO51 | float32 | DDO 51 mag | |
| DDO51_ERR | float32 | DDO 51 uncertainty | |
| IRAC_3_6 | float32 | IRAC 3.6 micron mag | |
| IRAC_3_6_ERR | float32 | IRAC 3.6 micron uncertainty | |
| IRAC_4_5 | float32 | IRAC 4.5 micron mag | |
| IRAC_4_5_ERR | float32 | IRAC 4.5 micron uncertainty | |
| IRAC_5_8 | float32 | IRAC 5.8 micron mag | |
| IRAC_5_8_ERR | float32 | IRAC 5.8 micron uncertainty | |
| IRAC_8_0 | float32 | IRAC 8.0 micron mag | |
| IRAC_8_0_ERR | float32 | IRAC 8.0 micron uncertainty | |
| WISE_4_5 | float32 | WISE 4.5 micron mag | |
| WISE_4_5_ERR | float32 | WISE 4.5 micron uncertainty | |
| TARG_4_5 | float32 | Target 4.5 micron mag | |
| TARG_4_5_ERR | float32 | Target 4.5 micron mag uncertainty | |
| AK_TARG | float32 | K-band extinction adopted for targetting | |
| AK_TARG_METHOD | char[11] | Method used to get targetting extinction | |
| AK_WISE | float32 | WISE all-sky K-band extinction | |
| SFD_EBV | float32 | SFD E(B-V) | |
| WASH_DDO51_GIANT | int16 | Evolutionary state classification derived from Wash+DDO51 photometry (1=giant, 0=dwarf, -1=no data) | |
| WASH_DDO51_STAR | int16 | Star/extended object likelihood based on Washington+DDO51 photometry (0=extended, 1=star-like or no data) | |
| PMRA | float32 | Proper motion RA measurement | |
| PMDEC | float32 | Proper motion DEC measurement | |
| PM_SRC | char[21] | Source utilized for proper motion |